Washing-machine.



L. A. CURTIS & E. H. HALL.

WASHING MACHINE. ABPLIOATION FILED JUNE 8, 1912.

1,078,486, Patented Nov. 11, 1913.

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L. A. CURTIS & E. H. HALL.

WASHING MACHINE. APPLICATION FILED JUNE 8, I912.

Patented Nov. 11,1913.

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COLUMBIA PLANOORAPH co.. WASHINGTON, D. c.

UNITED STATES PATENT QFFIOE.

LEWIS A. CURTIS AND EDNARD H. HALL, 01E ALAMEDA, CALIFORNIA,

WASHING-MACHINE.

Specification of Letters ]?atent.

Application filed June 8, 1912.

PatentedNov. 11, 1913.

Serial No. 702,535.

and EDWARD H. HALL, citizens of the United States, residing at Alameda, in the county of Alameda and State of California, have invented new and useful Improvements in Washing-Machines, of which the following a specification.

This invention is an improved washing machine and consists in the construction, combination and arrangement of devices hereinafter described and claimed.

The object of the invention is to provide an improved machine of this character in which the operating parts may be readily assembled and disassembled so as to facilitate putting the articles to be washed in and the taking of them from the machine, and to also facilitate the cleaning of the parts of the machine, and further to effect improvements in the construction of the bed on which the clothes or other articles to be washed are rubbed, another object being to effect improvements in the construction of the oscillating rubber.

in the accompanying drawings :-Figure 1 is a vertical transverse sectional view of a washing machine constructed in accordance with our invention. Fig. 2 is partly a side elevation and partly a vertical sectional view of the same on the plane indicated by the line a-a of Fig. 1. Fig. 3 is a detail perspective view of one of the revoluble rollers of the rubber. Fig. 1 is a detail sectional view of the rubber.

In accordance with our invention, we provide a body, tank or tub 1 which is here shown as rectangular in form and made of sheet metal, preferably galvanized iron. This body is provided at its corners with supporting legs 2 and one of its longitudinal sides is inclined outwardly at 3. A reinforcing frame 4: is secured on the upper edges of the side and end walls of the body or tub, the said side and end walls being provided with outwardly projecting flanges 5 a on which the corresponding member of the p drained from the body.

frame 4: bears, the members of the frame bemg secured on the said flanges as by means of suitable devices such as screws 6. At the bottom of the body or tank is a faucet 7 be discharged and Arranged on the inner sides of the end Walls of the tank or body at a suitable distance from the rear side thereof are oppositely disposed vertical through which water may channel bars 8 which form guides and bearings for the projecting spindles S) of the axle 10 of the oscillating rubber 11. This rubber comprises a pair of substantially semi-elliptical end members 12, the upper corners of which are connected at the front and rear sides of the rubber by longitudinal bars 13-14. The bar 13 isfitted in notches 15 in the end members 12 and issecured in place by screws 16. The bar 1 1 bears on the upper edges of the member 12, at their rear corners and is secured in place by screws 17. A pair of uprights or standards 18 have their lower ends secured to the bar 13. .An operating handle 19 connects the said standards 18 at a point near their uppervends. A series of revoluble rollers 20 are arranged between and connect the end members 12 of the rubber, the bearings for the said rollers being near the lower sides of the end members of the rubber, as indicated at 21 and each of the said rollers comprising radially arranged blades 22, the lower sides of the said rollers extending below the corresponding bottom edges of the end members of the rubber. The pivotal spindles9 of the rubber being arranged in the guides 8, are free to'move vertically in said guides as well as to turn therein and, hence, the rub her is not only adapted to be oscillated in the body or tank of the machine but is also adapted to be moved vertically and to be readily lifted out from the tank, at will.

A float 28 is arranged for free vertical movement in the tank and is here shown as wooden, having vertical end walls 24;, a concave upper side 25 which is below the upper edges of the said end walls, reinforcing bars or spreaders 26 arranged longitudinally in the lower corners of the float and a series of cross sectionally triangular rubbing bars 27 which are secured and arranged longitudinally on the concave upper side of the float. The float is provided at the centers of its end walls with lift straps 28 which may be made of canvas or any other suitable material and which enable the float to be readily taken out from the tank or body after the rubber has first been removed.

In the operation of our improved washing machine, the articles which are on the float are pressed upwardly by the buoyant action of the float against the lower side of suds and between the rubbing bars of the float and the revoluble rollers of the rubber. Owing to the semi-elliptical form of the rubber the oscillating motion thereof causes the float to rise and descend so that the suds are forced through the fabrics and, owing to the fact that both the float and the rubber are vertically movable and independent of each other in the tank, the said elements accommodate themselves to the various articles between them.

It will be observecl'upon reference to Fig. l of the drawing that the pivot axle 9 of the rubber is at some distance from the center of the rubber and, hence, owing to this tact and also owing to the semi-elliptical shape of the bottom of the rubber, rocking movement of the rubber causes the float to rise and descend in the suds and, moreover, as the float descends it progressively recedes from the pivotal axis of the rubber and, hence, the pressure on the articles between the revoluble rollers of the rubber and the rubbing bars of the float is increased as the float descends and decreases as the float rises.

While we have herein shown and described a preferred form of our invention, we would have it understood that changes may be made in the form, proportion and construction of the several parts without departing from the spirit of our invention and within the scope of the appended claim.

The herein described washing machine comprising atank or body, a float in the tank or body having a concave upper side, and rubbing elements forming its concave upper side, and a rubber mounted in the tank or body above the float for oscillation and also for vertical-movement with and independently of the Heat, the said rubber comprising end members and rollers connecting the said end members mounted for r volution and formed with radial blades,

the said rollers being arranged in a curve and forming a convex body for the rubber, the pivotal axis of the rubber being to one side of the center thereof and causing the pressure of the rollers of the rubber on the rubbing elements of the float to be progressively increased as the float descends.

In testimony whereof we our signatures in presence of twowitnesses.

LE /VIS A. CURTIS. EDWARD H. HALL.

lVitne'sses M. V. CoLLINs, Gno. M. MARTIN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, 13.0. 

